基于流场计算的天然气集输管线CO2腐蚀预测模型

doi:10.7623/syxb201302024

石油学报 ›› 2013, Vol. 34 ›› Issue (2): 386-392.DOI: 10.7623/syxb201302024

基于流场计算的天然气集输管线CO₂腐蚀预测模型

崔　钺 1 　兰惠清 2 　康正凌 2　何仁洋 3　黄　辉 3　林　楠 1

1.北京交通大学机械与电子控制工程学院北京 100044; 2.海军后勤技术装备研究所北京100072; 3.中国特种设备检测研究院北京 100013

收稿日期:2012-08-23 修回日期:2012-12-26 出版日期:2013-03-25 发布日期:2013-01-31
通讯作者: 兰惠清，女，1973年12月生，2002年获中国石油大学（北京）博士学位，现为北京交通大学副教授，主要从事石油天然气管道安全方面的科研工作。
作者简介:崔钺，男，1987年4月生，2012年获北京交通大学硕士学位，现为北京交通大学博士研究生，主要从事石油天然气管道腐蚀方面的研究。Email:12116321@bjtu.edu.cn
基金资助:
国家高技术研究发展计划（863）项目(2012AA040105-3)资助。

Improvement of a CO₂ corrosion prediction model for natural gas pipelines based on flow field calculation

CUI Yue 1　 LAN Huiqing 1　 KANG Zhengling 2　 HE Renyang 3　 HUANG Hui 3 　LIN Nan 1

Received:2012-08-23 Revised:2012-12-26 Online:2013-03-25 Published:2013-01-31

摘要/Abstract

摘要：

为了更准确地反映含CO₂天然气管线典型管件（弯头及T形管）的腐蚀情况，在根据deWaard腐蚀模型预测管段平均腐蚀速率的基础上，应用计算流体动力学（CFD）方法计算了管道内的流场，分析了流场参数对管段腐蚀速率的影响，进而结合颗粒冲蚀模型，对已有的de Waard腐蚀模型进行了改进，并提出了流场作用下的CO₂腐蚀模型。应用该改进的CO₂腐蚀模型研究现场实际工况表明：影响管线腐蚀的主要流场参数为介质流速、湍动能和相分布;弯头腐蚀最大位置位于弯头部位迎流侧偏向流场下游位置;T形管腐蚀最大位置位于沿内部斜向合流部位。改进模型计算出的管线重点腐蚀位置和腐蚀速率，与现场工况的壁厚检测结果吻合良好，从而验证了该改进腐蚀模型的正确性。这种基于流场作用下改进的CO₂腐蚀模型为天然气管线腐蚀预测体系的建立提供一种新思路。

关键词: CO₂腐蚀模型, 弯头, T形管, 流场, 计算流体动力学, 管道

Abstract:

In order to more exactly reflect corrosion situation of typical pipe fittings (elbows and tees) for natural gas pipelines with CO₂, flow field within pipelines is calculated by using computational fluid dynamics (CFD) method based on average corrosion rate predicted by de Waard corrosion model, and impact of flow field parameters on corrosion rate of pipelines is anulyzed. Furthermore, the existing de waard corrosion model is modified and a CO₂ corrosion model under flow filed influence is proposed. The applied results of improved CO₂ corrosion model shows that main flow field parameters affecting pipeline corrosion are media velocity, turbulent kinetic energy and phase distribution. The maximum corrosion in elbows occurs at facing stream side partial to flow-field downstream while that in tees occurs at confluent part diagonally along internal oblique interflow structure. The corrosion location and rate of pipelines calculated by the modified model are well consistent with wall-thickness detection results on site conditions, which verifies validity of the improved CO₂ corrosion model. This improved CO₂ corrosion model based on the flow-field effect provides a new approach to build up a system for predicting corrosion location and rate of natural gas pipelines.

Key words: CO₂ corrosion model, , elbow, , tee, , flow field, , computational fluid dynamics, , pipeline

崔　钺兰惠清康正凌何仁洋黄　辉林　楠 . 基于流场计算的天然气集输管线CO₂腐蚀预测模型[J]. 石油学报, 2013, 34(2): 386-392.

CUI Yue LAN Huiqing KANG Zhengling HE Renyang HUANG Hui LIN Nan . Improvement of a CO₂ corrosion prediction model for natural gas pipelines based on flow field calculation[J]. Editorial office of ACTA PETROLEI SINICA, 2013, 34(2): 386-392.

参考文献

[1] 魏丹，叶东，王献昉，等.含CO₂多相流相态的非均匀性对输油管冲刷腐蚀的影响[J].科技导报,2009，27(16):49-52.

Wei Dan,Ye Dong,Wang Xianfang,et al.Effect of nonuniformity of multiphase flow with CO₂ on erosion corrosion of pipeline[J].Science & Technology Review,2009,27(16):49-52.

[2] 胡建春，胡松青，石鑫，等.CO₂分压对碳钢腐蚀的影响及缓蚀性能研究[J].青岛大学学报:工程技术版，2009，24(2):90-93.

Hu Jianchun,Hu Songqing,Shi Xin,et al.Dynamic corrosion behaviors of tubing steels in simulated oilfield H₂S/CO₂ environment[J].Journal of Qingdao University:Engineering & Technology Edition,2009,24(2):90-93.

[3] 吕祥鸿，赵国仙，张建兵，等.用于集输管线的0.5Cr钢在模拟塔里木油田环境中的H₂S/CO₂腐蚀行为研究[J].石油学报,2009,30(5):782-787.

Lü Xianghong,Zhao Guoxian,Zhang Jianbing,et al.Experimental study on corrosion behaviors of H₂S and CO₂ to 0.5 Cr steel used in gathering pipeline at simulated environment of Tarim Oilfield[J].Acta Petrolei Sinica,2009,30(5):782-787.

[4] de Waard C,Milliams D E.Carbonic acid corrosion of steel[J].Corrosion,1975,31(5):177-181.

[5] Bernardus F M P,Sergio D K,Randy C J,et al.Improvements on de Waard-Milliams corrosion prediction and application to corrosion management:Corrosion 2002,Denver,April 7-11,2002[C].Denver:NACE International,2002.

[6] Smith L,de Waard K,Bruce D C,et al.The influence of crude oils on well tubing corrosion rates:Corrosion 2003,San Diego,March,2003[C].San Diego:NACE International,2003.

[7] Standards Norway.M-506 CO₂ corrosion rate calculation model[S].Lysaker:Standards Norway,2005.

[8] Nesic S,Postlethwaite J,Olsen S.An electrochemical model for prediction of corrosion of mild steel in aqueous carbon dioxide solutions[J].Corrosion,1996,52(4):280-294.

[9] Nesic S,Lee K L J.A mechanistic model for carbon dioxide corrosion of mild steel in the presence of protective iron carbonate films-Part 3:film growth model[J].Corrosion,2003,59(7):616-628.

[10] Angeli P,Hewitt G F.Flow structure in horizontal oil-water flow[J].International Journal of Multiphase Flow,2000,26(7):1117-1140.

[11] Feenstra P A,Weaver D S,Judd R L.An improved void fraction model for two-phase cross-flow in horizontal tube bundles[J].International Journal of Multiphase Flow,2000,26(11):1851-1873.

[12] Bonizzi M,Issa R I.On the simulation of three-phase slug flow in nearly horizontal pipes using the multi-fluid model[J].International Journal of Multiphase Flow,2003,29(11):1719-1747.

[13] Pope S B.湍流[M].北京:世界图书出版公司，2010.

Pope S B.Turbulent flows[M].Beijing:World Publishing Corporation,2010.

[14] Prasad B K.Effects of alumina particle dispersion on the erosive-corrosive wear response of a zinc-based alloy under changing slurry conditions and distance[J].Wear,2000,238(2):151-159.

[15] Modi O P,Saxena M,Prasad B K,et al.Corrosion behaviour of squeeze-cast aluminium alloy-silicon carbide composites[J].Journal of Materials Science,1992,27(14):3897-3902.

[16] 朱世东，白真权，尹成先，等.CO₂分压对P110钢腐蚀行为的影响[J].石油化工腐蚀与防护，2008，25(5):12-15.

Zhu Shidong,Bai Zhenquan,Yin Chengxian,et al.Impact of CO₂ partial pressure on corrosion behavior of P110 steel[J].Corrosion & Protection in Petrochemical Industry,2008,25(5):12-15.

[17] López D A,Pérez T,Simison S N.The influence of microstructure and chemical composition of carbon and low alloy steels in CO₂ corrosion.A state-of-the-art appraisal[J].Materials & Design,2003,24(8):561-575.

[18] Moayed M H,Newman R C.Deterioration in critical pitting temperature of 904L stainless steel by addition of sulfate ions[J].Corrosion Science,2006,48(11):3513-3530.

[19] 龙凤乐，郑文军，陈长风，等.温度、CO₂分压、流速、pH值对X65管线钢CO₂均匀腐蚀速率的影响规律[J].腐蚀与防护，2005，26(7):290-293.

Long Fengle,Zheng Wenjun,Chen Changfeng,et al.Influence of temperature,CO₂ partical pressure,flow rate and pH value on uniform corrosion rate of X65 pipeline steel[J].Corrosion & Protection,2005,26(7):290-293.

[20] Nesic S.Key issues related to modelling of internal corrosion of oil and gas pipelines:a review[J].Corrosion Science,2007,49(12):4308-4338.

[21] Zhang Yucheng,Pang Xiaolu,Qu Shaopeng,et al.The relationship between fracture toughness of CO₂ corrosion scale and corrosion rate of X65 pipeline steel under supercritical CO₂ condition[J].International Journal of Greenhouse Gas Control,2011,5(6):1643-1650.

[22] 中国特种设备检测研究院.徐深6测厚数据录入报告[R].北京：中国特种设备检测研究院，2011.

China Special Equipment Inspection and Research Institute.Report of the wall thickness detection data in Xushen 6[R].Beijing:China Special Equipment Inspection and Research Institute,2011.

基于流场计算的天然气集输管线CO₂腐蚀预测模型

Improvement of a CO₂ corrosion prediction model for natural gas pipelines based on flow field calculation

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	赵平起, 马跃华, 冯许魁, 李洪革, 何书梅, 韩斯成. 油藏渗流场地球物理表征方法[J]. 石油学报, 2021, 42(5): 634-640.
[2]	翟维枫, 梁志珊, 左信, 毕武喜, 蓝卫. 地磁暴引起的埋地管道管地电位“波节”和“纠缠”分布特征[J]. 石油学报, 2020, 41(8): 1001-1010.
[3]	徐秀芬, 李泓霏, 刘国豪. 加气站压缩机组效率计算新方法[J]. 石油学报, 2020, 41(8): 1019-1024.
[4]	姚安林, 田晓建, 徐涛龙, 高山, 蒋宏业, 李又绿. 管道爆炸对同沟邻管的冲击效应及防爆墙抗爆性能[J]. 石油学报, 2020, 41(6): 753-761.
[5]	陈海宏, 左丽丽, 吴长春, 李清平. 油品需求型成品油管道分输计划优化[J]. 石油学报, 2019, 40(8): 990-996.
[6]	邢潇, 崔淦, 杨紫晴, 李自力. 管线钢的裂纹生长预测新模型[J]. 石油学报, 2019, 40(6): 740-747.
[7]	郭凌云, 周晶, 代云云. 基于不同随机退化过程的腐蚀管道时变失效概率[J]. 石油学报, 2019, 40(12): 1542-1552.
[8]	奚斌, 刘扬, 周济人, 陆伟刚. 螺旋流洗井液流失速特性[J]. 石油学报, 2017, 38(7): 846-854.
[9]	张新生, 李亚云, 王小完. 基于逆高斯过程的腐蚀油气管道维修策略[J]. 石油学报, 2017, 38(3): 356-362.
[10]	梁博, 蒋宏业, 徐涛龙, 姚安林, 文霞. 基于SPH-FEM耦合算法的埋地输气管道近场爆炸冲击动力响应[J]. 石油学报, 2017, 38(11): 1326-1334.
[11]	隋冰, 刘刚, 李博, 赵家良, 陈雷. 颗粒在起伏成品油管道中的沉积运移规律[J]. 石油学报, 2016, 37(4): 523-530.
[12]	付建民, 赵振洋, 陈国明, 罗会玖, 张保坡, 张伯伦, 叶闯, 朱渊. 液相管道流量与压力对小孔泄漏速率的影响[J]. 石油学报, 2016, 37(2): 257-265.
[13]	张鹏, 彭杨. 考虑随机变量相关性的腐蚀管道失效概率[J]. 石油学报, 2016, 37(10): 1293-1301.
[14]	赵青, 李玉星, 李顺丽. 超临界二氧化碳管道杂质对节流温降的影响[J]. 石油学报, 2016, 37(1): 111-116.
[15]	董亮, 姜子涛, 杜艳霞, 路民旭, 孟庆思. 地铁杂散电流对管道牺牲阳极的影响及防护[J]. 石油学报, 2016, 37(1): 117-124.